Process of making rubber water-bottles.



M. B. CLARKE.

PROCESS OF MAKING RUBBER WATER BOTTLES.

APPLICATION FILED OCT. 20. l9l5.

1,207,872. Patented Dee. 5,1916.

2 SHEETS-SHEET I.

M. B. CLARKE.

PROCESS OF MAKING RUBBER WATER BOTTLES.

APPLICATION FILED OCT- 20. I9I5.

Patented Deb. 5 1916.

2 SHEETSSHET 2.

UNITED sTlrrEs PATENT OFFICE.

MARCELLUS B. CLARKE, OF CANTON. OHIO.

PROCESS OF MAKING RUBBER WAfl'SIER-BOTTLFS.

Application filed October 20. 1915.

.- CLARKE, a citizen of the l'nited States. re-

.l J bottle. so

siding at Clinton, in the county oi Star]; and State of Ohio, have invented a certain new and useful Im1'n'ovement in Processes of Making Rubber lVater-llottles, of which the following is a full, clear. and exact description, reference being had to the accom panying; drawings.

My Patent No. 1,117.327, issued November 17, 191%, shows. describes and claims arubber water bottle wherein the filling tunnel and neck is made integral with the side walls of-the bottle. and there are. upwardly extending ears from such side walls havimg origin-ally an opening between them which 'ing afterward removed through the space between the flanges. and the flanges thereafter united. Such process obviates the necessitjy of removing the core through the bottoniof the bottle, as has been a frequent practice heretofore. and thus results in enabling the bottle to be most secure where it has to hair the greateststrain, namely; along the lower edge.

My intention is illustrated by the drawings hereof, and is hereinafter more fully described and the essential steps are summarized in the claims.

In the (lltl\\'ll'lg5 Figure 1 a front elevation showing a bottle made by my process after vulcanization but before the ears are trimmed oll': Fin. 2 is a view of the upper portion of fhc bottle before the ears have b en Bured together and thus showing the openio; {through whi h the. core is removed, the npenlne in th s a-Qghemg made through both sliouhha-s o! the b ttle; Fig. 3 is a new of the upper poi-lionol the finished bottle partly broken a wa to show the thimble applied \vithin: lig. 4-

a cross section through the neck of the bottle as indicated Specification t Letters Patent.

Serial No. 56.976.

b the lin l -l in Fig. 5: hill. 5 is a per spectlve view of a bot l made l v the saute. process where the slit thr ugh which the core is removed is eonlined to one shoulder ol the bottle. the car on the other shoulder being a solid flange or dummy 'l'or a 'ipearance. sake and stilleninglpurposes; Fig. U is a sectional perspective view of such bottle as molded and before the ears ar secured ti'ie'ether: Fig. T is a perspe tive view oi such bottle after the ears are secured together and llt'lUl't. the) are trimmed oll'; Fig. H is a cross section through the funnel oi such bottle adjacent to the top; Fig. 5.) a. side elevation of a mandrel which may be employed: Fig 1'. v1U is a horizontal section: of such mandrel on the line il ol Fig. S) looking-a iilownwardly. i

p In each of the views 1 to 8 inclusive, 6 designates the sides or body portions of the bottle, 7 the neck portion. and S the funnel portion, and it the tabs and 10 corrugations which may be formed on the inside of the neck portion.

In order to permit the core to be withdrawn from such a bottle Without opening the bottom or sides. the neck and funnel portions of the blank are interrupted on one or both sides to make separable flaps which are united or continuous at their lower ends with the opposite sides of the. body, but which are free. or disoonnectt-al t'rom each other on one or both sides of the neck above or beyond a slot extending across the top of the bottle. In other words, instead of making the neck and funnel portions continuous and circular, they are split or left open, thus producing a slit which extends down the shoulder of the bottle a sufficient distance to allowthe removal of the core.

At the, time the blank orbody is made, as above. indicated, eaeh'side ot-the neck and funnel is provided with an extension or flange. indicated at 1.2, and the correspondin; side of the bottle. has, at the shoulder, an extension or flange The core. for the interior ot'-- the blank and the mold within which it is made are suitably constructed for the above ptii-ose, and the resultingblank is seamless aii d is closed at all points, exfeptlthe elongated opening at the top of the '70, e.

Infashioning the bottle, it is preferably' formed on a coreprovided with an extended portion, shaped similarly to the-ears or fla.nge s- 'and extend ng between then],

core, this operatioi'i being easily acconn plished by reason of the slit through the top of the bottle.

After the removal of the blank from the mold and. its removal from the core, the metal thimble is applied: This is done by lacing the .thimble, which is indicated. at 14, between the separated portions of the neck, rubber gum or cement being applied around the edges 12 and 13, as Well as around the thinible. The neck portions are then closed against the thimble. The flanges or edges 12 and 13 are lapped or pinched or worked together by hand to form a complete tube or tunnel. and close the side opening or joint, thereby cennpleting the funnel, the neck around the thiinble and the top of the bottle. The bottle is then subjected to a final cure in a suitable vulcanizing mold which intimately unites the flanges or ears to close the opening. At the same time the bringing together of the opposing faces of the ca serves to complots the annular formation forthe filling funnel, and also serves to hold the stopper receiving nipple in position. After the final cure, the united. "flanges are trimmed or otherwise treated, as desired.

- The flanges 12 and. 13 on the bottle are of use in thevulcanizing step, being gripped by the vuleanizer parts and preventing displace inent of the bottle during vulcanization. After the parts are united and vulcanized, as above described, and as the flanges are trimmed oil smoothly they present a very neat and attractive appearance. These flanges are also of use in the finished bottle as a stiffening medium for the upright funnel, steadying the same during the filling operation, and they also reinforce the bottle adjacent to the thimble, thus aiding in secu rely holding the thimble in place.

Inasmuch as the bottle is quite elastic, it is not necessary to have the hole through which the mandrel is removed normally as large as the cross section of the mandrel. A couvenient form of mandrel is shown at A in Figs.

9 and 10, this mandrel having a body portion of the shape of the interior of the bottle, a neck portion a (which may be exter 'na-lly corrugated), and a. flaring funnel portion a, and one or more'wings a? to prevent the adhering of the flanges. I have shown one of these blades in full lines, and the other in broken lines since one of the blades may, lie-omitted, if desired. After the bot- $10 is molded on such a mandrel the elasticity of the bottle allows the mandrel to be readily withdrawn through the neck open-.

ing and'the communicating slit or slits.

If it is desired to have slits through both shoulders of the bottle on opposite sides of the neck, the slit need extend only part way down the shoi'llders, as shown in. Fig. 2, and such slits, with the central opening, allowing sufficient room for moving the mandrel. l l, however, it is desired to make the slit only through one shoulder, it thus extends farther down the shoulder, as shown in Fig. 6, so that the bottle may be easily stripped from the mandrel through the opening provided in this one shoulder and the neck. When one slit is employed, there may be formed at the other shoulder a. flange designated 15 in Figs. 5 .to 8, this flange being trimmed oil so that it eventually has the same shape a. the two united flanges 12 on the other side. Thus, whether the slit extends through one shoulder or both shoulders, the finished bot-- tle is substantially the same.

Having thus described my invention, what I claim is:

1.. The method. of making a bottle of vul canizable gum compound comprising for1ning the body and neck portions over a care, the neck portion being formed with a slit in. at least one side joining with a slit in the shoulder of the body portion, then withdrawing the core, and uniting the edges of such parts at the shoulder and neck.

2. The method of making a bottle of vulcanizable gum compound comprising molding the body and neck portions ,over a core, the neck portion being formed with a slit in at least one side joining with a slit in the shoulder,v and there bein flanges projecting from the neck and shoul er on opposite sides of such communicating slits, then Withdrawing the core and uniting the flanges at the shoulder and neck.

The method of making a- Water bottle or similar article of a 'vulcanizable gum compound con'iprising making the body portion with two side walls, a split filling fun nel, anda split neck, the neck portion or portions uniting the funnel portion or portions with the side walls, and there being one or more pairs of u 'iwardly extending flanges, each flangc'being integral with one of the walls and with the neck and with the filling funnel, the flanges of such pair or pairs being separated when the parts are molded,

whereby a slit is provided communicating with the neck opening, removing the core through such. slit and opening, and there after intiinatel y uniting the flanges togetheig' to close the opening or openings through the shoulder or shoulders of the bottle.

4. The method of making a rubber bottle or similar vessel comprising molding the body and neck portions over a core, the neck portion having an up and down slit-through it communicating With-a slit at the shoulder oi the bottle between the body portions, semi-curing the parts in this condition, re- "moving the, core, placing cement on the edges at the slits, and then completing the curing to intimately unite the portions of the neck and shoulder which were on opposite sides of the slit.

5. The method of making a rubber bottle or similar vessel comprising molding the body and neck portions over a core, the neck portion being formed with a. slit in its side and there being a communicating slit through the shoulder of the bottle, and the neck and sides being formed with flanges or ears adjacent to the slits, there being a flange extending from the shoulder and neck on the diametrically opposite side of the bottle, then removing the core through the opening provided, then intimately uniting the flanges adjacent to the slits, and then trimming oil the flanges on both sides oi the bottle to present a symmetrical appearance.

G. The method of making a rubber bottle or similar vessel, comprising molding the body and neck portions over a core, the neck portion being fornicdnith one or more side openings therein, permitting withdrawal of the core, and uniting the edges of said parts,- aiter removal of. the core, to form the neck.

7. The method of making a rubber bottle or similar vessel, comprising molding the body and neck in a single piece over a core, the neck portion being formed with a side opening communicating with an opening between the body portion and there being extended flanges at the edges thereof, withdrawing the core through the opening thus provided. and then uniting the said flanges to form 'the neck. I

S. The method of making a rubber bottle or similar vessel, con'iprising molding the body and neck portions in a single piece over a core. the neck portion being formed with separated edges, said separation extendingoutwardly into the shoulder of the body to form an opening for the withdrawal of the core, and said neck and body having flanges at said edges, withdrawing the core through said opening, and then uniting and rulcanizing the said flanges to form the neck and close the shoulder opening 9. The method of making a rubber bottle or similar vessel, comprising molding the body and neck portions over a core, forming the neck portion with an opening communicating with an opening between the sides of the body, withdrawing the core through the opening thus provided, inserting a thimble withinthe neck, and uniting and vulcanizing the edges of said parts to form the neck and hold the thimble in place,

10. The method of making a rubber bottle or similar vessel, comprising molding the body and neck portions over a'core,forn1- ing the neck portion separated with flanges at the edges thereof and a transverse slit in the shoulder, withdrawing the core through the opening provided, and then uniting the flanges and closing the slits by cementing and vulcanizing the edges.

11. The method of making a rubber bottle or similar vessel, comprising molding the body and neck portions over a core, the neck portion being formed in two side parts' with an opening thercbetween permitting withdrawal of the core, and uniting the edges oi said parts, after removal of the core, to form the neck.

' 12. The method of making a rubber bottle or similar vessel, comprising molding the body and neck portions over a core, the neck portions being formed as two flaps or parts with separated edges extending to the shoulders of the bottle, wit-l'idrawing the core through the opening between said parts, and then uniting said edges to form the neck.

13. The method of making a rubber bottle or similar Vessel, comprising molding the body and neck in a single piece over a cor the neck portion being formed as two side flaps with extended flanges at the edges thereof, withdrawing the core through the opening between said flaps, and then uniting the said flanges to form the neck.

1%. The method of making a rubber bottle or similar vessel. comprising molding the body and neck portions in a single piece over a core, the neck portion being formed as two flaps separated at their edges, said separation extending outwardly into the -shoulders of the body, to form an opening "for the withdrawal of the core, and. said flaps having flanges at said edges, withdrawing the core through said opening, and then-uniting and rulcanizing the said flanges to form the neck and close the shoulder opening.

15. The method of making a rubber bottle or similarwessel, comprising molding the body and neck portions over a core, forming the neck portion in two side parts with an opening therebetween, withdrawing the core through said opening, inserting a neck thimble between said side parts, and uniting and vulcanizing the edges of said parts, to form the neck and hold the thimble in place.

16. The method of making a rubber bottle or similar vessel, comprising molding the body and neck portions over a core, forming the neck portion in two separate side flaps with flanges at the edges thereof and trans verse slits in the shoulders at the base of saidsignature.

MARCELLUS B. CLARKE.

Copies 01' this patent they be obtained for five cents each, by addressing the Commissioner (at Patents; s Washington. I). 0." 

